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-rw-r--r--include/asm-ia64/sparsemem.h20
1 files changed, 20 insertions, 0 deletions
diff --git a/include/asm-ia64/sparsemem.h b/include/asm-ia64/sparsemem.h
new file mode 100644
index 00000000000..67a7c40ec27
--- /dev/null
+++ b/include/asm-ia64/sparsemem.h
@@ -0,0 +1,20 @@
+#ifndef _ASM_IA64_SPARSEMEM_H
+#define _ASM_IA64_SPARSEMEM_H
+
+#ifdef CONFIG_SPARSEMEM
+/*
+ * SECTION_SIZE_BITS 2^N: how big each section will be
+ * MAX_PHYSMEM_BITS 2^N: how much memory we can have in that space
+ */
+
+#define SECTION_SIZE_BITS (30)
+#define MAX_PHYSMEM_BITS (50)
+#ifdef CONFIG_FORCE_MAX_ZONEORDER
+#if ((CONFIG_FORCE_MAX_ZONEORDER - 1 + PAGE_SHIFT) > SECTION_SIZE_BITS)
+#undef SECTION_SIZE_BITS
+#define SECTION_SIZE_BITS (CONFIG_FORCE_MAX_ZONEORDER - 1 + PAGE_SHIFT)
+#endif
+#endif
+
+#endif /* CONFIG_SPARSEMEM */
+#endif /* _ASM_IA64_SPARSEMEM_H */